dd50c3ba967fa3422b1656f1f231fc4d3d8adfefce64d28c220b2bdc6a3319be

Analysis

max time kernel
43s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
24-11-2022 18:10

Target

Rensenware.exe
Size

96KB
MD5

60335edf459643a87168da8ed74c2b60
SHA1

61f3e01174a6557f9c0bfc89ae682d37a7e91e2e
SHA256

7bf5623f0a10dfa148a35bebd899b7758612f1693d2a9910f716cf15a921a76a
SHA512

b4e5e4d4f0b4a52243d6756c66b4fe6f4b39e64df7790072046e8a3dadad3a1be30b8689a1bab8257cc35cb4df652888ddf62b4e1fccb33e1bbf1f5416d73efb
SSDEEP

3072:kGXc7vE4k8sWJnmiWpJtCkGwJ1ED7qztG:RXD8sWBmiW0wX6Gx

Score

8^/10

Modifies extensions of user files 4 IoCs

Ransomware generally changes the extension on encrypted files.

Processes:

Rensenware.exe

description	ioc	process
File created	C:\Users\Admin\Pictures\SetMove.png.RENSENWARE	Rensenware.exe
File created	C:\Users\Admin\Pictures\CopyCheckpoint.raw.RENSENWARE	Rensenware.exe
File created	C:\Users\Admin\Pictures\ExportUnblock.png.RENSENWARE	Rensenware.exe
File created	C:\Users\Admin\Pictures\ProtectEnable.png.RENSENWARE	Rensenware.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

Rensenware.exe

description	pid	process	target process
PID 1956 wrote to memory of 960	1956	Rensenware.exe	dw20.exe
PID 1956 wrote to memory of 960	1956	Rensenware.exe	dw20.exe
PID 1956 wrote to memory of 960	1956	Rensenware.exe	dw20.exe

C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
dw20.exe -x -s 428
2⤵
PID:960

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

Discovery

Lateral Movement

Collection

Data from Local System

Command and Control

Exfiltration

Impact

memory/960-56-0x0000000000000000-mapping.dmp

Download
memory/960-57-0x000007FEFB931000-0x000007FEFB933000-memory.dmp

Filesize
8KB

Download
memory/1956-54-0x000007FEF3410000-0x000007FEF3E33000-memory.dmp

Filesize
10.1MB

Download
memory/1956-55-0x000007FEF2370000-0x000007FEF3406000-memory.dmp

Filesize
16.6MB

Download